Pennsyltucky is a slang portmanteau of the names of the U.S. states of Pennsylvania and Kentucky. It is used to characterize—usually humorously, but sometimes deprecatingly—the rural part of Pennsylvania outside the Pittsburgh and Philadelphia metropolitan areas, more specifically applied to the local people and culture of its mountainous central Appalachian region. The term is used more generally to refer to the Appalachian region, particularly its central core, which runs from Pennsylvania to Kentucky, and its people.